159.29% is the change from 312 to 809
Calculation steps:
[( 809 - 312 ) ÷ 312] x 100 = 159.29%
Formula
Percentage change = [(809 - 312) / 312] x 100
Subtract the new number by the original number
809 - 312 = 497
497 ÷ 312 = 1.5929487179487178
1.5929487179487178 x 100 = 159.29%